SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 7:10 PM ET
How66 put contracts / 26 call contracts = 2.54 for the 2026-11-27 expiration. Open interest is published once a day, before the open, so it describes the previous session.
Too thin to read: 92 open contracts across 20 strikes. Max pain, walls and gamma print from 100 contracts across 5 strikes.
Open interest by strike · Fri, Nov 27
■ calls (up)■ puts (down)RACE open contracts per strike for Fri, Nov 27.
Open-interest change: building vs unwinding
Needs two observed snapshot days for this expiration; the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Nov 27
Implied volatility by strike · Fri, Nov 27
— call IV— put IVATM ≈ 26.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Greeks by strike · Fri, Nov 27
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.96
-0.08
355
0.0021
0.07
-0.09
-0.04
0.93
-0.12
370
0.0038
0.12
-0.12
-0.07
0.90
-0.15
380
0.0057
0.16
-0.16
-0.10
0.88
-0.17
385
0.0070
0.19
-0.18
-0.13
0.84
-0.20
390
0.0084
0.22
-0.20
-0.16
0.75
-0.24
400
0.0120
0.28
-0.25
-0.25
0.62
-0.28
410
0.0154
0.34
-0.28
-0.38
0.54
-0.29
415
0.0163
0.35
-0.29
-0.46
0.46
-0.28
420
0.0165
0.35
-0.29
-0.55
0.38
-0.27
425
0.0158
0.34
-0.28
-0.63
0.31
-0.25
430
0.0145
0.32
-0.26
-0.70
0.24
-0.23
435
0.0128
0.28
-0.23
-0.77
0.19
-0.20
440
0.0110
0.25
-0.20
-0.82
0.15
-0.17
445
0.0092
0.21
-0.18
-0.86
0.12
-0.15
450
0.0076
0.18
-0.15
-0.90
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 20 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Max pain, walls and gamma print only when an expiration holds at least 100 open contracts across 5 strikes, and max pain also needs to stay within 5% of spot when its single heaviest strike is removed. Below that the expiration reads as thin rather than printing a level one trade could move.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.